A new geometrical method for 3D evaluation of non-rigid registration methods for radiotherapy in prostate cancer

Rodríguez Vila, Borja; Gayá Moreno, Francisco Javier; Pozo Guerrero, Francisco del; García Vicente, Feliciano y Gómez Aguilera, Enrique J. (2008). A new geometrical method for 3D evaluation of non-rigid registration methods for radiotherapy in prostate cancer. En: "Computer Assisted Radiology and Surgery 22nd International Congress and Exhibition (CARS 2008)", 25/06/2008-28/06/2008, Barcelona, España.

Descripción

Título: A new geometrical method for 3D evaluation of non-rigid registration methods for radiotherapy in prostate cancer
Autor/es:
  • Rodríguez Vila, Borja
  • Gayá Moreno, Francisco Javier
  • Pozo Guerrero, Francisco del
  • García Vicente, Feliciano
  • Gómez Aguilera, Enrique J.
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: Computer Assisted Radiology and Surgery 22nd International Congress and Exhibition (CARS 2008)
Fechas del Evento: 25/06/2008-28/06/2008
Lugar del Evento: Barcelona, España
Título del Libro: Proceedings of the Computer Assisted Radiology and Surgery 22nd International Congress and Exhibition (CARS 2008)
Fecha: 2008
Materias:
Escuela: E.T.S.I. Telecomunicación (UPM)
Departamento: Tecnología Fotónica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Three-dimensional conformal radiotherapy aims at delivering a high dose of radiation to the tumour, while sparing the surrounding normal tissue to a maximum extent. Image registration is an essential tool for monitoring radiation therapies, since allows morphological comparisons in presence of anatomic variations. The evaluation of non-rigid registration methods is very complicated owe to the absence of a known pointwise correspondence. The use of analysis of variations in target volume delineations has been proposed in the past for the evaluation of non-rigid registration methods. Delineation of the target volume is usually accomplished by outlining the contour of the volume in each separate tomographic slice. In the studies of reference, the 3D surface is rendered from the contours by means of a Delauney triangulation. This geometrical method only works correctly for convex structures. However the volumes involved on pelvic anatomy, such as bladder or prostate including the seminal vesicles, have relevant concavities that introduce a huge error in the evaluation. A new geometrical method for the evaluation of convex-concave target volumes delineation is proposed.

Más información

ID de Registro: 4116
Identificador DC: http://oa.upm.es/4116/
Identificador OAI: oai:oa.upm.es:4116
URL Oficial: http://www.cars-int.org/2008/cars_2008.html
Depositado por: Memoria Investigacion
Depositado el: 28 Mar 2011 09:54
Ultima Modificación: 20 Abr 2016 13:27
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